Highly pH-dependent facile-preparation of amorphous high surface area aluminum hydroxide-bicarbonates with [ε-Al13O4(OH)24(H2O)12]7+

Yuki Kinoshita; Ryota Osuga; Junko N. Kondo; Yoshiyuki Ogasawara; Sayaka Uchida

doi:10.1246/cl.180103

Highly pH-dependent facile-preparation of amorphous high surface area aluminum hydroxide-bicarbonates with [ε-Al₁₃O₄(OH)₂₄(H₂O)₁₂]⁷+

Yuki Kinoshita, Ryota Osuga, Junko N. Kondo, Yoshiyuki Ogasawara, Sayaka Uchida

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Amorphous high surface area aluminum hydroxide-bicarbonates were easily prepared by mixing an aqueous solution containing [ε-Al₁₃O₄(OH)₂₄(H₂O)₁₂]⁷⁺ with an aqueous solution of sodium bicarbonate. The pH of the synthetic solution was controlled by the addition of aqueous sodium hydroxide, and amorphous composites with high surface area (>200 m² g¹¹) were obtained around pH = 7.5. The surface area decreased with the increase or decrease in pH (30 m² g¹¹ at pH = 5.9 and 0.4 m² g¹¹ at pH = 9.8). SEM and TEM images suggested that composites with high surface area were aggregates of nanoparticles.

Original language	English
Pages (from-to)	668-670
Number of pages	3
Journal	Chemistry Letters
Volume	47
Issue number	5
DOIs	https://doi.org/10.1246/cl.180103
Publication status	Published - 2018
Externally published	Yes

Keywords

Aluminum hydroxide-bicarbonate
Base metal
High surface area

ASJC Scopus subject areas

Chemistry(all)

Access to Document

10.1246/cl.180103

Cite this

@article{29e66ddf99b94c2cbdab3643259f1c1c,

title = "Highly pH-dependent facile-preparation of amorphous high surface area aluminum hydroxide-bicarbonates with [ε-Al13O4(OH)24(H2O)12]7+",

abstract = "Amorphous high surface area aluminum hydroxide-bicarbonates were easily prepared by mixing an aqueous solution containing [ε-Al13O4(OH)24(H2O)12]7+ with an aqueous solution of sodium bicarbonate. The pH of the synthetic solution was controlled by the addition of aqueous sodium hydroxide, and amorphous composites with high surface area (>200 m2 g11) were obtained around pH = 7.5. The surface area decreased with the increase or decrease in pH (30 m2 g11 at pH = 5.9 and 0.4 m2 g11 at pH = 9.8). SEM and TEM images suggested that composites with high surface area were aggregates of nanoparticles.",

keywords = "Aluminum hydroxide-bicarbonate, Base metal, High surface area",

author = "Yuki Kinoshita and Ryota Osuga and Kondo, {Junko N.} and Yoshiyuki Ogasawara and Sayaka Uchida",

note = "Funding Information: This work was supported by Grant-in-Aids for Scientific Research on Innovative Area “Coordination Asymmetry” (JP17H05356) and Advanced Characterization Nanotechnology Platform of the University of Tokyo supported by MEXT. Prof. M. Matsuo and Dr. K. Shozugawa (Univ. of Tokyo) are acknowledged for providing access to the ICP instrument. Publisher Copyright: {\textcopyright} 2018 The Chemical Society of Japan.",

year = "2018",

doi = "10.1246/cl.180103",

language = "English",

volume = "47",

pages = "668--670",

journal = "Chemistry Letters",

issn = "0366-7022",

publisher = "Chemical Society of Japan",

number = "5",

}

TY - JOUR

T1 - Highly pH-dependent facile-preparation of amorphous high surface area aluminum hydroxide-bicarbonates with [ε-Al13O4(OH)24(H2O)12]7+

AU - Kinoshita, Yuki

AU - Osuga, Ryota

AU - Kondo, Junko N.

AU - Ogasawara, Yoshiyuki

AU - Uchida, Sayaka

N1 - Funding Information: This work was supported by Grant-in-Aids for Scientific Research on Innovative Area “Coordination Asymmetry” (JP17H05356) and Advanced Characterization Nanotechnology Platform of the University of Tokyo supported by MEXT. Prof. M. Matsuo and Dr. K. Shozugawa (Univ. of Tokyo) are acknowledged for providing access to the ICP instrument. Publisher Copyright: © 2018 The Chemical Society of Japan.

PY - 2018

Y1 - 2018

N2 - Amorphous high surface area aluminum hydroxide-bicarbonates were easily prepared by mixing an aqueous solution containing [ε-Al13O4(OH)24(H2O)12]7+ with an aqueous solution of sodium bicarbonate. The pH of the synthetic solution was controlled by the addition of aqueous sodium hydroxide, and amorphous composites with high surface area (>200 m2 g11) were obtained around pH = 7.5. The surface area decreased with the increase or decrease in pH (30 m2 g11 at pH = 5.9 and 0.4 m2 g11 at pH = 9.8). SEM and TEM images suggested that composites with high surface area were aggregates of nanoparticles.

AB - Amorphous high surface area aluminum hydroxide-bicarbonates were easily prepared by mixing an aqueous solution containing [ε-Al13O4(OH)24(H2O)12]7+ with an aqueous solution of sodium bicarbonate. The pH of the synthetic solution was controlled by the addition of aqueous sodium hydroxide, and amorphous composites with high surface area (>200 m2 g11) were obtained around pH = 7.5. The surface area decreased with the increase or decrease in pH (30 m2 g11 at pH = 5.9 and 0.4 m2 g11 at pH = 9.8). SEM and TEM images suggested that composites with high surface area were aggregates of nanoparticles.

KW - Aluminum hydroxide-bicarbonate

KW - Base metal

KW - High surface area

UR - http://www.scopus.com/inward/record.url?scp=85045838309&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85045838309&partnerID=8YFLogxK

U2 - 10.1246/cl.180103

DO - 10.1246/cl.180103

M3 - Article

AN - SCOPUS:85045838309

VL - 47

SP - 668

EP - 670

JO - Chemistry Letters

JF - Chemistry Letters

SN - 0366-7022

IS - 5

ER -